bap8guy | HP465 Gen Purpose Amplifier - Testing @bap8guy | Uploaded February 2023 | Updated October 2024, 16 hours ago.
The HP465A is a handy bench unit for the preset amplification of low voltage signals in the 5Hz to 1Mhz range.
It has a frequency response that varies less than .1db from 100Hz to 50Khz, or less than 2db from 5Hz to 1Mhz.
It has less than 25 microvolt of noise relative to an input with a 1Megohm source resistance.
It has less than 1% distortion level from 10Hz to 100Khz, and less than 2% from 5Hz to 10Hz, or from 100Khz to 1Mhz.
You can select either a x10, or a x100 gain setting that is accurate to 1% (at 1Khz )for the amplifier, at the flip of a switch. This means you can amplify signals for your bench equipment that would otherwise not work properly. For instance, you want to read a 1mv signal on your frequency meter, but that signal is too low to drive the meter. Solution: amplify the signal x100 and now you have a .1v signal to operate your equipment. I demonstrate an example of this in this video.
It is an attractive, nicely packaged amplifier for your bench.
Of primary interest in this video, I perform frequency response and gain tests of the unit, which it passed easily.
The HP465A is a handy bench unit for the preset amplification of low voltage signals in the 5Hz to 1Mhz range.
It has a frequency response that varies less than .1db from 100Hz to 50Khz, or less than 2db from 5Hz to 1Mhz.
It has less than 25 microvolt of noise relative to an input with a 1Megohm source resistance.
It has less than 1% distortion level from 10Hz to 100Khz, and less than 2% from 5Hz to 10Hz, or from 100Khz to 1Mhz.
You can select either a x10, or a x100 gain setting that is accurate to 1% (at 1Khz )for the amplifier, at the flip of a switch. This means you can amplify signals for your bench equipment that would otherwise not work properly. For instance, you want to read a 1mv signal on your frequency meter, but that signal is too low to drive the meter. Solution: amplify the signal x100 and now you have a .1v signal to operate your equipment. I demonstrate an example of this in this video.
It is an attractive, nicely packaged amplifier for your bench.
Of primary interest in this video, I perform frequency response and gain tests of the unit, which it passed easily.
